Dear community. We got the license for ParallelStudio XE Composer Fortran for Windows, but it turned out that GNU FORTRAN is up to 4 times faster than Visual Fortran Compiler 17.0.2.187. We are using the same code but in Gfortran I only use -O3. I know that there has to be something that I am overlooking, because It has been demonstrated that Intel compilers are faster and more efficient than GNU compilers.
I have read the manuals but I have not found anything yet. I also found something similar on the web another user reporting the same issue. He needed to use different flags when compiling. However, I am user Visual Studio and all these compiling options are difficult to find.
I will greatly appreciate your contribution in this problem. !!!
Thanks!